public class AccountTester {
    public static void main(String args[]) {
        BankAccount anAccount;
        anAccount = new BankAccount("张柳", 100001,260);
        anAccount.setBalance(anAccount.getBalance() + 300); //金额在初始化的基础上加300
        anAccount.setAccountNumber(100026);  //银行卡号变成100026
        System.out.println("Here is the account: " + anAccount);
        System.out.println("Account name: "+ anAccount.getOwnerName());
        System.out.println("Account number: "+ anAccount.getAccountNumber());
        System.out.println("Balance: $" + anAccount.getBalance());
    }

}
